Bar-headed geese migrate over the Himalayas at up to 9000 m elevation, but it is unclear how they sustain the high metabolic rates needed for flight in the severe hypoxia at these altitudes. To better understand the basis for this physiological feat, we compared the flight muscle phenotype of bar-headed geese with that of low altitude birds (barnacle geese, pink-footed geese, greylag geese and ...

A new species of the dicroglossid frog genus Limnonectes is described from Ubon Ratchathani Province, northeastern Thailand. Limnonectes lauhachindai sp. nov. differs from its congeners by having males with a low-profiled, U-shaped caruncle with free posterior margin that completely occupies, but does not extend beyond, the interobital region. The new species is most closely related to L. gylde...

BACKGROUND The number of orphans in Rakai district, Uganda is estimated to be 34,902 (OCBO, 2000) which translates into 28% of children under the age of 18 years. Young people who have been orphaned and as a result became heads of households must look after themselves and their siblings. These children are likely to be faced with several health problems and have to take crucial life decisions w...